methionine

简明释义

英[meˈθaɪəˌniːn]美[məˈθaɪəˌniːn]

n. 甲硫氨酸，蛋氨酸

英英释义

单词用法

同义词

反义词

例句

1.AIM: To investigate the protective effects of S-adenosyl-L-methionine (SAM) on alcoholic liver diseases.

目的：观察s -腺苷- L -甲硫氨酸(SAM)对乙醇性肝损伤的预防作用。

2.The limitary amino acid for biosynthesis of protein in both of the animals are all phenylalanine and methionine.

两者蛋白质生物合成中的限制氨基酸都是苯丙氨酸和蛋氨酸。

3.When methionine intake is low, homocysteine is recycled back to methionine in a process involving folic acid and vitamin B12.

而当甲硫氨酸摄入量较低时，同型半胱氨酸又通过一条包含叶酸和维生素b12的途径再循环生成甲硫氨酸。

4.Objective To study the implication of tumor cells' methionine dependence in promoting the effects of chemotherapy.

目的探讨肿瘤细胞的甲硫氨酸依赖性在提高肿瘤化疗疗效方面的作用及意义。

5.The fermentation kinetics of S-adenosyl-L-methionine (SAM) producing Saccharomyces cerevisiae HYS98 was studied through chemostat cultivation.

通过恒化培养对S-腺苷甲硫氨酸（SAM）产生菌酿酒酵母HYS98发酵动力学进行了研究。

6.Methylation with TMG helps to convert the undesirable chemical homocysteine into the amino acid methionine.

甜菜碱的甲基化有利于转换同型半胱氨酸为氨基酸蛋氨酸。

7.But the methionine level in blood plasma and liver had trend of rise with increasing of methionine level in the diet on 14 day-old.

但14日龄时，血浆和肝脏中的蛋氨酸含量随日粮蛋氨酸水平的提高呈上升趋势。

8.Cottonseed meal is deficient in lysine, methionine and leucine.

粉缺乏赖氨酸，蛋氨酸和亮氨酸。

9.Homoserine has also been implicated in the biosynthesis of methionine.

同型丝氨酸也牵涉到蛋氨酸的生物合成。

10.Foods rich in methionine 蛋氨酸 include eggs, fish, and nuts.

富含methionine 蛋氨酸的食物包括鸡蛋、鱼和坚果。

11.Athletes often take methionine 蛋氨酸 supplements for muscle recovery.

运动员常常服用methionine 蛋氨酸补充剂以促进肌肉恢复。

12.The body needs methionine 蛋氨酸 to synthesize proteins.

身体需要methionine 蛋氨酸来合成蛋白质。

13.A deficiency in methionine 蛋氨酸 may lead to health issues.

缺乏methionine 蛋氨酸可能会导致健康问题。

14.Supplementing with methionine 蛋氨酸 can help improve liver function.

补充methionine 蛋氨酸可以帮助改善肝功能。

作文

Methionine is one of the essential amino acids that our body needs for various functions. It plays a crucial role in protein synthesis, which is fundamental for growth and repair of tissues. Unlike some amino acids that our body can produce on its own, methionine must be obtained through our diet. This makes it an essential component of our nutrition. Foods rich in methionine include meat, fish, dairy products, and certain nuts and seeds. The importance of methionine goes beyond just being a building block of proteins. It also serves as a precursor for other important molecules in the body, such as cysteine and taurine. Cysteine, for instance, is another amino acid that is vital for the production of antioxidants, which help protect our cells from damage. Additionally, methionine is involved in the methylation process, which is essential for DNA repair and gene expression regulation. A deficiency in methionine can lead to various health issues, including muscle weakness, fatigue, and impaired immune function. This is why it is crucial to ensure that we consume enough of this amino acid in our daily diets. Vegetarians and vegans, in particular, should pay close attention to their intake of methionine, as plant-based sources may not provide sufficient amounts. Some plant foods, like lentils and chickpeas, do contain methionine, but they often have lower concentrations compared to animal products. Moreover, research has suggested that methionine might play a role in metabolic processes that affect liver health. Some studies indicate that adequate levels of methionine can help prevent fatty liver disease, which is becoming increasingly common in today’s society due to poor dietary choices and sedentary lifestyles. In addition to its physiological roles, methionine has been studied for its potential therapeutic effects. Some researchers are exploring its use in treating conditions such as depression and anxiety, as it may influence neurotransmitter levels in the brain. While more research is needed to confirm these benefits, the preliminary findings are promising and highlight the multifaceted nature of this amino acid. In conclusion, methionine is an essential amino acid with significant roles in our bodies. From aiding in protein synthesis to supporting liver health and potentially influencing mental well-being, its importance cannot be overstated. Ensuring adequate intake of methionine through a balanced diet is vital for maintaining overall health and well-being. As we continue to learn more about the benefits of various nutrients, methionine remains a key player in the complex biochemistry of our bodies.

蛋氨酸是我们身体所需的必需氨基酸之一，参与多种功能。它在蛋白质合成中发挥着至关重要的作用，而蛋白质合成对组织的生长和修复是基础。与一些可以由身体自行产生的氨基酸不同，蛋氨酸必须通过饮食摄入。这使得它成为我们营养的一个必不可少的成分。富含蛋氨酸的食物包括肉类、鱼类、乳制品以及某些坚果和种子。蛋氨酸的重要性不仅仅在于作为蛋白质的构建块。它还作为其他重要分子的前体，如半胱氨酸和牛磺酸。例如，半胱氨酸是另一种对抗氧化剂生产至关重要的氨基酸，帮助保护我们的细胞免受损伤。此外，蛋氨酸参与甲基化过程，这对DNA修复和基因表达调节至关重要。缺乏蛋氨酸可能导致各种健康问题，包括肌肉无力、疲劳和免疫功能受损。因此，确保我们在日常饮食中摄入足够的这种氨基酸至关重要。特别是素食者和严格素食者应该特别关注他们的蛋氨酸摄入，因为植物来源的食物可能无法提供足够的量。一些植物性食物，如扁豆和鹰嘴豆，确实含有蛋氨酸，但它们的浓度往往低于动物产品。此外，研究表明蛋氨酸可能在影响肝脏健康的代谢过程中发挥作用。一些研究表明，充足的蛋氨酸水平可以帮助预防脂肪肝疾病，这在当今社会由于不良饮食选择和久坐生活方式而变得越来越普遍。除了生理作用外，蛋氨酸也被研究其潜在的治疗效果。一些研究人员正在探索其在治疗抑郁症和焦虑症中的应用，因为它可能影响大脑中的神经递质水平。尽管需要更多的研究来确认这些益处，但初步发现令人鼓舞，突显了这种氨基酸的多面性。总之，蛋氨酸是一种具有重要作用的必需氨基酸。从促进蛋白质合成到支持肝脏健康，再到潜在地影响心理健康，它的重要性不容小觑。通过均衡饮食确保充足的蛋氨酸摄入对维持整体健康和幸福感至关重要。随着我们继续了解各种营养素的益处，蛋氨酸仍然是我们身体复杂生物化学反应中的关键角色。